If you haven't seen it yet, you probably want to look at
http://kafka.apache.org/documentation.html#java

-Ewen

On Thu, Feb 19, 2015 at 10:53 AM, Zakee <kzak...@netzero.net> wrote:

> Well are there any measurement techniques for Memory config in brokers. We
> do have a large load, with a max throughput 200MB/s. What do you suggest as
> the recommended memory config for 5 brokers to handle such loads?
>
> On Wed, Feb 18, 2015 at 7:13 PM, Jay Kreps <jay.kr...@gmail.com> wrote:
>
> > 40G is really huge, generally you would want more like 4G. Are you sure
> you
> > need that? Not sure what you mean by lsof and index files being too
> large,
> > but the index files are memory mapped so they should be able to grow
> > arbitrarily large and their memory usage is not counted in the java heap
> > (in fact by having such a large heap you are taking away OS memory from
> > them).
> >
> > -Jay
> >
> > On Wed, Feb 18, 2015 at 4:13 PM, Zakee <kzak...@netzero.net> wrote:
> >
> > > I am running a cluster of 5 brokers with 40G ms/mx for each. I found
> one
> > of
> > > the brokers is constantly using above ~90% of memory for
> jvm.heapUsage. I
> > > checked from lsof output that the size of the index files for this
> broker
> > > is too large.
> > >
> > > Not sure what is going on with this one broker in the cluster? Why
> would
> > > the index file sizes be so hugely different on one broker? Any ideas?
> > >
> > >
> > > Regards
> > > Zakee
> > > ____________________________________________________________
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-- 
Thanks,
Ewen

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